CVE-2026-64226

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 3.0% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-08-13.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-07-24 15:23Z1 MO AGO

Last updated

2026-08-05 12:40Z1 MO AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-416Use After FreeVariant
• CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

fa29e600fbf7d915f7b9ce324d51293557d5d79e0e6f9495c0979d4f34ab7101

• git.kernel.orghttps://git.kernel.org/stable/c/cf396941901858b0de426cdcd3974eea6a02c98c
• git.kernel.orghttps://git.kernel.org/stable/c/45c7c4e3db8b700307313c035ea08be829a7f21b
• git.kernel.orghttps://git.kernel.org/stable/c/57e19ba3f58a67eb924022a5a60b67fd08e5cbbd
• git.kernel.orghttps://git.kernel.org/stable/c/9a415cc53711f2238e0f0ca8a6bcc796c003b127